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S240 Application:China structural steel and alloy steel
Category Type Steel grade Standard Country
Grades Special Alloy S240 GBT China

Chemical composition % of the ladle analysis of grade S240

C(%) Si(%) Mn(%) P(%) S(%)
Max 0.17 Max 0.35 0.45-1.15 0.03 0.03
S240
Mechanical properties of grade S240
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
894 (≥) 675 (≥) 34 21 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 311
Physical properties of grade S240
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
222 (≥) 983 (≥) 22 32 11 Solution and Aging, Annealing, Ausaging, Q+T,etc 144
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
366 243 649
S240 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
A 240 Type XM-29 GBT China
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
A 249 TPXM-29 GBT China
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 269 TPXM-29 GBT China
Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
A 276 XM-29 GBT China
Stainless Steel Bars and Shapes
A 312 TPXM-29 GBT China
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 314 XM-29 GBT China
Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
A 358 XM-29 GBT China
Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General Applications
A 412 Type XM-29 GBT China
Stainless and Heat-Resisting Chromium-Nickel-Manganese Steel Plate, Sheet, and Strip
A 479 XM-29 GBT China
Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
A 580 Type XM-29 GBT China
Stainless Steel Wire
A 688 Grade TP XM-29 GBT China
Welded Austenitic Stainless Steel Feedwater Heater Tubes
A 813 Grade TP XM-29 GBT China
Single- or Double-Welded Austenitic Stainless Steel Pipe
A 814 Grade TP XM-29 GBT China
Cold-Worked Welded Austenitic Stainless Steel Pipe
A 943 TPXM-29 GBT China
Spray-Formed Seamless Austenitic Stainless Steel Pipes
A 955 XM-29 Grade 280 GBT China
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 XM-29 Grade 40 GBT China
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 XM-29 Grade 420 GBT China
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 XM-29 Grade 520 GBT China
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 XM-29 Grade 60 GBT China
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement
A 955 XM-29 Grade 75 GBT China
Deformed and Plain Stainless-Steel Bars for Concrete Reinforcement

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